Selective change-speed gearing and control mechanism



G. B. INGERSULL. SELECTIVE CHANGE SPEED BEARING AND CONTROL MECHANISM,

APPLICATION FILED MAY 7. I919.

G. B'. INGERSOLL. SELECTIVE CHANGE SPEED BEARING AND CONTROL MECHANISM,

' APPLICATION 'FILE D MAY 7, 1919. 1,853,240.

[VVE/VTOR N 0 2 m m mm s N m I I II II I II m 4150a,: [ii/ 5km E Y ence being had to the ll y GEORGE 2. INGEBSQLL.

SELECTIVE CHANGE-SPEED :os'rsorr, MICHIGAN.

yawn-coarser. :asormmsm.

S animation of Letters .iatent. p v

lla'teilted Sept. 21, 1920.

l -lanai filed a a, 191s. Serial no. 295.4142.

To all w itom it may concern Be it known that I, Gnome B. INonnsoLL, a citizen of the United States, residing at Detroit, county of Wayne, State of Michi gan, have invented ful' Improvement in Selective Change- Speed Gearing and Control Mechanism, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to ,makeand use the same, referaccompanyi'ng drawings, which fornra part of this specification. invention relates to change speed gearing and mechanism for its selection and control. 1

The object is to provide a change speed gearing and control system operable from the steering wheel or steering column.

on line Fig. 3 is a cross sectiou'ofthe 'cnange' speed gear and the control mechanism taken Another object is to provide a change speed; gearing, which will do away with the clashing of gears as they are thrown into and out of engagement with each other .by providing a constant mesh type of gearing. Another object is to provide a change speed gear, which by the use of telescopic gears and telescopic collars, and i a new method of control and. selection .willpermit of the gears being in constant mesh.

Another object is to provide a change speed gear embodying'the telescopic feature which because of its particular form and arrangement of parts can be inclosed in a small compact transmission case In the drawings Figure 1 is an elevation, partly in section, of the control mechanism as applied to an automobile.

Fig. Zis a'cross section of the change speed gear and the control connection taken 11 -11 of Fig. 3.

on line 1ll-11l, of Fig. 2.

Fig. l is a plan view of thespeed selecting quadrant mounted on the steering wheel.

Fig. 5 is a top plan view, partly broken away, of the change speed gear casing. ('1-a is the-floor of the automobile. b is the dash board.

0 is the steering post. wheel mounted thereon. sleeve carried bvthe steering column and adapted to be revolved by means of a hand lever f, fitted with handle j.

(l is the steering formed to e is a rotatable The lower extremity of sleeve 0 carries a short arm 9, pivoted atg to link it. The rearward extremity of link {it is pivoted at It to an arm 2', which is mdunted on post 5' so as to rotatably actuate post 1, thereby reciprocating forked-arm is. Each fork of arm is is provided-with an opposed internally projecting lug 7c.-

A sleeve mis splmed-on shaft Sleeve m is provided with a grooved colla'r m and is adapted for longitudinal movement on shaft n. Lugs 7c of forked arm is, fit within this groove collar m. Sleeve mi carries a downwardly projectinglug'm which fits into the grooved upper extremities of collar shifting members 11, 12, 13 and 14.

The clutch lever is indicated by g). 051s the clutch lever foot pedal. and p are long and short arms respectively of a rocker arm pivotedat p p is-pivoted at to a connecting rod 7) which is pivoted at p to an'arm 29 which arm serves-torotat-ably reciprocate shaft n.

The clutch lever connecting "with the clutch mechanism-is. shown in dotted outline but forms nopart of this device.

( is; the change speed gear casing.

ris the driving shaft'fromthe engine. Z is a constantmesh gear carried at the inner end of said driving shaft-r, and recessed at s for roller bearings s supporting mainshaft t. i

Driving shaft '1' ings s*.

lv'lainshaftt is supported by bearings t;

The mainshaft is ep-lined or otherwise is supported by bearreceive telescopic collars '1'2' and 3, which are inv turn splined to receive-- each other. The outer periphery of collar 3 1s a mesh gear. I v

The outer extremities ofi-these collars,

which are inset one above the other, are

groovedjas" illustrated in Fig. 2' to receive and be hemispherically engaged by collar shitting members 11,12 and 13.

Collar shifting members 11. 12 and 1 3 are fixed on their respective shaftsll, 12 a nd 13. which shafts lie in a horizontal plane,-

and are adapted for longitudinal movement.

A conventional interloclti-ng system is provided, not shownin the drawings, except in so far as illustrated on one of the shafts in Fig. 2, where locking ball 15 is shown as locking the mo.ve ment ofisha'i't 12, being held in a recess in said shaft-12* bymeans of a. spring 16. This same device is provi tled for each one of the shafts on which collar shifting members are mounted, in cluding the reverse shifting member shaft 144*, hereinafter more particularly described. The longitudinal movement of one of these collar shifting member shafts when it is picked up to-throw into engagement its desired gear draws the recess in said shaft away from the locking ball and through the ment with gears 4, 5 and 6 respectively, 'a r- 'ried by the lay shaft 9.1,. Letter u is a bushing on the lay shaft 14. Telescopic gears l, 2 and 3 areprovided with dogs on their inner faces to interlock with corresponding dogs provided on the inner faces of telescopic collars 1, 2 and 3, respectively.

Letter '0 indicates the countershaft splined for a portion of its distance to receive collar 1 of similar form and purpose to the collars on the main shaft and which is in constant mesh with gear 5 on the. lay shaft u. Reverse gear shifting member l-lhemis 'iherical1y engages collar "o: in a manner similar to that shown in Fig. of the engagement of the collars on the main shaft by their respective gear shifting members. Collar "u: is adapted for longitudinal niovcincnt on the counter shaft in manner simi.'

lar to the movement of the collars on the main shaft, audits inner face is provided withdogs to engage with. correspondingdog 'n'ovidcd on the inner face of gear 8, which is rotatably carried on the cmintershaft. Gear 8' is in constant mesh w th collar 3" of the main shaft.

it will be apparent that the shifting-of collar '11 ii'iterloclring it with gear 8 will bring the main shaft into rotation in the revcrse direction.

Collar 1 is shifted by means of collar shifting member ll. which is pivotally mounted for a reciprocal rocking n'iovement at ;1 "Its engagement with ollar w: is similar to the engagement of the collar shifting members with the collars mounted on the main shaft and the movement is otherwise similar. To lirovide for the interlocking of collar shifting member l-l. in addition to being pivoted at 1/, it mounted on shaft 1%, which is disposed in a horiz'iontal plane 'with the shafts 11, 12 and 13 It is mounted on said shaft between two fixed collars, and by means of which the shaft is actuated together with the actuation of the collar shifting'meinber A. sufficient clearance space is allowed, shown, to provide for the rocking movement of said shifting member 14 upon its pivotal point 3 It is evident that this method of gear shifting and control does away with the old commonly known stick method of control, and places the speed selecting device where it is most handy, on the steering wheel or column. I I

The clashing of gears is likewise'abolished as the gears are coi'istantly in mesh. The particular arrangement of parts, employment of telescopic collars and gears, and the constant mesh feature provide a very small clutch lever is thrown out, this movement actuates the rocker arm composed of arms and 7/" about its pivotal point [1 forcing p and its pivoted connectionp" in a rearwardly direction,- rotating shaft n and bringing dmvnwardly projecting lug or intoline with the grooves in the upper extremities of the-collar shifting members. The desired speed is then selected on the speed selecting quadrant mounted on the steering wheel. This rotates sleeve 6 on the stcering post. Through the mechanical chain composed of short arm 5/, links Ii and i, post j is rotated and moves'slceve m longitudinally on shaft n bringing downwardly pro jecting lug in into the groove in the upper extremity of gear shifting member ll. The

clutch lever is then released and as it returns,

to its normal position through the force of the spring or swings in the clutch mecha nism itself, shaft 22 is reciprocally rotated, collar shifting member ll is moved with its shaft ll longitudinally of said shaft. telescopic collar 3 thereby being brought into engagement by means of its interlocking dogs with gear gear 3 being in constant mesh with gear (3 on the lay shaft which rotates with gears 4 and 5 on the lay shaft, being constantly engaged with constant mesh gear 1 on the driving shaft, thus driving force is tran'snzittml to the main shaft.

17 is one of two opposed bumper ln'aclcets, one onceach side, projecting out from the Ill Ill-3 strains such a tendency on the part of the gear and holds it in its position on the driving shaft.

Having I claim is:

1. In a change speed gearing, a clutch, a main shaft, a driving shaft, a lay shaft, a series of telescopic gears mounted on the driving shaft, a series of telescopic gears mounted on. the lay sh mesh with the gears on thus described my invention, what the driving shaft, a,

.series of telescopic collars mounted on the main shaft rotatable therewith corresponding with the gears mounted on the driving shaft, selective means for such gearing, and means for engaging individual collars on the main shaft with corresponding gears on the driving shaft coincident with. the throwing in of the clutch.

2. The combination in a change speed gearing, of a clutch, a main shaft, a driving shaft, a series of telescopic collars mounted on the main shaft, a corresponding series of telescopic gears mounted on the driving shaft. a selective means for such gearing operahle when the clutch is out of engagement, means for automatic engagement of the selected gear than the clutch is thrown into engagement.

3. In a'change-speed gearing, the combination of a clutch, a main shaft, :1 driving shaft, a series of telescopic collars mounted on the main shaft, a corresponding series of telescopic gears mounted on the driving shaft, means for driving said driving shaft gears at varying rates of speed, selective means for such gearing, means for throwing individual collars on. the main shaft into engagement with corresponding gcars'on the driving shaft coincident with the engagement of the clutch.

st. in .a change speed gearing, the combination of a clutch, a main shaft, a series of telescopic collars mounted on said main shaft and rotatable therewith but longitudinally movable thereon, a driving shaft, corresponding gears thereon, means for engaging such collars individually w th said corresponding on the driving shaft, means for automatically shiftingsuch col lars from their position of disengagement by throwing the clutch into engagement.

In a change speed gearing, a clutch, a main shaft, adriving shaft, a series of telescopic collars mounted on the'niain shaft, a series of telescopic gears mounted on the driving shaft, a selective means for such gearing, means for automatically throwing the selected collar and its correspondrng ft constantly in scopic gears mounted on to engage collars mounted on gcar into engagement coincident with the engagement of the clutch.

6. In a change speed gearing, a clutch, a main shaft, a driving shaft, a series of telescopic collars mounted. on the main shaft, a series of telescopic gears mounted on the driving shaft, corresponding collar shifting members individually engaging each of said collars, selective means for such gearing operablcfrom the steering wheel, means for automatically shifting such selected collar into engagement with the corresponding gear when t e clutch is thrown into engagement- 1 '7. in a change speed gearing, a clutch, a main shaft, a driving shaft, aseries of telescopic collars mounted on the main shaft, rotatable therewith but adaptedfor longitudinal movement thereon and whose inner faces lie in a vertical plane when disengaged, a corresponding series of telescopic gears mounted on. the driving shaft and whose inner faces lie in a vertical plane when disengaged, means for selecting the desired change speed collar, and means for throwing the same into engagement with its corresponding driving gear coincident. with the throwing in of'the clutch.

8.. In a change speed gearing, a clutch, a main shaft, a driving shaft, a series of telethe driving shaft, a corresponding series of telescopic collars mounted on the main shaft rotatable therewith but adapted for longitudinal movement thereon, interlocking means provided on the inner faces of each of said gears? and collars, so that constituent members of pairs when interlocked will rotate as one piece, a plurality of collar shifting members one engaging with each ofsaid shiftaole collars, a gear selecting means, comprising a selector adapted to co--act with each of. said collar shifting members, means for bringing such selector into position. to actuate said collar shifting member, means for actuating such selector together with the selected collarshifting member to bring the collar into engagcmcnt with its corresponding gear coincident with the throwing in ofthe. clutch, means for automatically locking said disengaged collars in such position of dimngage ment.

9. In a change speed gearing the-comhina tion of a clutch, a main shaft, a driving shaft, a series of telescopic driving gears having locking surfaws mounted on the driving shaft such locking surfaces adapted the main shaft/pa series of corresponding telescopic collars having locking surfaces mounted on the main shaft and rotatable therewith, but" individually, longitudinally movable thereon, a plurality of corresponding collar shifting members whose lower extremities engage corresponding collars, a part adapted to enact with each of said collars-hitting members, a selective means for such change speed rearing operable from the steering wheel orcolu'mn for bringing such coacting part into engagement with the desired collar shifting memher, means for throwing such collar into engagement with its corresponding gear coincident with the engage ment of the clutch, means for automatically locking the disengaged collars in their })(JS1 tinn of disengagement.

10.. In a change speed gearing, the combination of a clutch, a driving shaft, a main shaft, a lay shaft, a of telescopically mounted gears on said driving shaft, a series of telescopically mounted gears on said on the driving shaft.

In testimony whereof, I signthis speeification.

ononen n. INGERSOLL. 

